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JoachimSchipper

[Not intending to start a flamewar...]

I was surprised to see that "acre-feet" were, apparently, not intended as a parody of the Imperial system.

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No, "acre-feet" is an actual measure of large volumes of water.

ADDED IN EDIT:

One acre-foot is 1233481.84 litres. That's 325851.429 US gallons, or 271327.96 imperial gallons.

For some values of "actual". I think these kinds of retarded units are one reason for not doing the arithmetic.

Errr, no, acre-feet is this domain the unit of measurement for water in the US. At least west of the Mississippi (west of the first line of states it gets quite dry and everything changes, including the system of law about water).

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